{
  "manageEntity": {
    "action": "Update",
    "entityId": "165670909",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x344ead9d2cc3d97921734c5f134710d86d2422e57e31c199c34ef873fd8d7145",
    "signature": "0x9927c1357a09cc1816a1c9690b596edf75d3af3249f43a54849ab389761d85336626be6f9baa93c1fea1be53a8c25145c0e2e0cc7da2f3db68e88101d51831bd1b",
    "signer": "0x80F75b4F31839103d97B92E50293B8579c90f82e",
    "userId": "165670909"
  }
}